2175025

素因数分解:

$5^2\times {\mathrm{19}}^2\times {\mathrm{241}}^1$

素因数の和:289

約数の個数: 18

約数和(自身を含む): 2858262

約数和(自身を除く): 683237

約数列:

[1, 5, 19, 25, 95, 241, 361, 475, 1205, 1805, 4579, 6025, 9025, 22895, 87001, 114475, 435005, 2175025]

約数ペア:

[(1, 2175025), (5, 435005), (19, 114475), (25, 87001), (95, 22895), (241, 9025), (361, 6025), (475, 4579), (1205, 1805)]